I have airtel mobile connection since 15.03.2007 and i have registered for DND( Do Not Disturb) service one year back and I have reference no. provided by them it clearly states all promotional communication to my number will be stopped within 45 days. But after one yaer now i m getting promotional communication. regarding this when i called to customer they told that the service is active.
One more issue is i made payment for my bill by due date but it was updated in system after 3days, because of that reason they have charged me late fee in next bill. I called and fought with them and got waiver for that amount. After that I got SMS from Airtel which states that due to technical problem your bill generation got delayed by one day, as result bill due date is extended by one day. when i made payment on the day said by them, i got SMS from them it shows the next day of payment.